
where relations involving conditional expectations are assumed
to hold almost surely.
These are the DLR-equations; see [1]}, [2]}, [3]}.
Note that (REF ) implies
\(\mathbb {P}(\xi (B)=0\mid \xi _{B^c})=e^{-\lambda (B)}Z_B(\xi _{B^c})^{-1}, \quad B\in {\mathcal {X}}_0.\) 
